Bicycle attachment.



PATENTED MAR. 26, 1907.

J. H. SAGER. BICYCLE ATTACHMENT.

APPLIIOATION FILED Nov. 1o, 1906.

PATENTED MAR. 26,-1907.

J.' H. SAGER.

BICYCLE ATTACHMENT.

APPLIUATION FILED Nov. 1ol 1906.

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UNITED STATES ATE? JAMES H. SAGER, OF'ROCHESTER, NEW

l BICYCLE ATTACHMENT.

No. 848,324. Specicati'onfof Letters Patent. Patented March 26, 1907.

Application filed November 10,1906. Serial No. 342,871.

To aZZ whom t may concern: 1, parts being shown in two positions each Be it known that I, JAMES H. SAGER, of by full and by dotted lines. Figs. 4 to 9, 1n- ,Rochesten in the county of Monroe and f elusive, are drawn to scales larger than those State of New York, have invented a new and of Figs. 1, 2, and 3. 6o useful Improvement in Bicycle Attachments, i Referring to the parts shown in the draw,- which improvement is fully set forth in the l ings, 1 is a portion of the forward end of the following specification and shown in the frame of a bicycle, or it may be a motoraccornpanylng drawings. cycle, 2, Figs. 1, 3, and 9, being the fork and 3 My invention relates generally to easing- ,l the front wheel, all substantially of ordinary springs for vehicles, it being designed more f construction. l particularly for use on bicycles and motorf 4, Figs. 1, 4, and 9, is one of-a pair, Fig. 2, cycles; and it hasfor itsobject,amongothers, of links connecting the lower ends of the to introduce connecting-links between the branches of the fork by means of pivot-bolts fork and the axle of the Wheel and provide a I 23 with the axle 5 of the wheel, the'fork being 7o secondfork with tubular branches containing disjoined from the axle as in ordinary .use springs connected by ivotal means with the and separated therefrom, as shown.

'axle of the forward wlibel. s' Figs. 1, 2, 6, 7, and 49, is an additional Another object of the invention is to rol fork placed in front of and substantially parvide a part or yoke lined to the main fori in allel with the main fork 2 and joined pivot- 7 5 position to act against the springs in the I ally at its lower end to the links 4, as shown, spring-fork. 4 by pivot-bolts .7 The points of connection Other objects and advantages of the in- I of the branches of this fork with the links are vention will be brought out and made to apbetween the end bearings of the links and pear in the following description and the purposelyncarer the aXle-beari gs, as clearly 8o novel features particularly pointed out in appears in Figs. 1 and 9, this additional or the appended claims, reference being had to minor fork 6 being independent of the main the accompanying drawings, which, with the fork 2. reference-nu1nerals marked thereon, form a The branches of the minor fork 6 are `cylinpart of this specification. drical and tubular, as shown in Figs. 2, 6, Figure 1 isa side elevation of fore parts of a and 7, and contain stiff helical or coiled' icyc e, showing my invention attached 1n sprin s 8, resting at their lower ends on suitplace thereon, parts being broken away able ase-pieces 9, rigid in the branches. Fig. 2 is a front view, indicated by arrow a Near their upper ends each branch is proin Fig. 1, with parts broken away. Fig. 3 vided with -a short plunger 10 within, Figs. 9o is a plan of the yoke, the fork being in cross- 6, 7, and 8, adapted to move' longitudinally section on the dotted line b in Fig. 1. Fig. 4 in the branch above the associated spring S is an edge view, looking downward, of a conthe branches being open at the top to receive meeting-link and adjacent portion of the the respective plungers. These plungers fork, showing the connection, parts being in are each formed with a branch -or part 11, horizontal section through the axis of the Figs. 2, 5, 6, and 7, projecting at right angles v connecting-bolt. Fig. 5 is a plan, of parts toward each other through longitudinal indicated by arrow c in Fig. 2, the springslots 12 in the opposing sides of the branches fork and associated parts being horizontally of the fork. sectioned on the dotted line d in said Fig. 2, In this construction I employ a branched roo parts being broken away. l Fig. 6 is a front yolie 13, Figs l, 2, 3, 5, and' 6, secured ad` elevation, mainly in longitudinal section, of iustably to the main fork 2 and reaching upupper arts of the spring-fork and port-ion of w ai d and forwai d between Athe branches of the yoke, parts being broken away Fig 7 the spring-fork 6, the yoke being formed Iis a side elevation of parts at the upper end of with a horizontal transverse head 14, with To 5 one branch of the spring-fork seen as indiits axis in the plane of the axes of the said cated by arrow in Fig. 6, parts being broken branches. The ends of the head 14 are away. Fig. 8 is a side elevation of a plunger axially caviticd to receive and hold the two and dust-guard detached seen in a direction cylindrical portions of the branches 11 of the o posite to that of Fig. 7. Fig. 9 is a side plungcrs 10, as clearly shown in Figs. 5 and 1ro e evation of one of thelinks and lower parte 6, .said branchesll being coaxial and further -oined by an axial threaded tie `15.

ofthe two connected `forks viewed as in Fig.

' means of this yoke 13 the weight ofv the occupant of the vehicle and '.of'the forward part f to holdthe upper ends of the branches of the fork 6 which two branches are independent vehicle, being contro by t'he yoke 18 and at their lower ends by.l

of theframe are brought upon the two lungers- 10. and thence upon the springs `8 1n thefork 6 and finally upon the pair 'of link connections 4 4 -'near the axle' 5 yof the carrying-wheel 3. This yoke further serves ofeach other vand of the main fork 2 and lare in no wise secured rigidly to any part of the led'at their upper ends the independent links 4.

As clearly sho'wn in Fig. 6, the plungers 10- do not rest directly upon the ends-of the 8, said plungers being longitudinally c am ered to receive within them longitudinally-movable flanged thimbles 16 16, which bear at their lower flanged ends directly v upon the springs, as shown. The branches the fork 6, open at their upper ends, are covered by caps 17, threaded thereon, the branches being further provided with axial adjusting-screwsor {core-'rods 18, Figs.' 1, 2, 5, 6, -and 7. These adjusting parts f are threaded in the respective thimbles 16 and,

'piercing the cap 17, project slightly thereabove, the exposed en ds -being transversely .slotted toreceive an ,ordinary screw-driver for turning them. These arts- 18 are formed with flanges in the cavities of lthe plunger-s v10, one bein shown at'19, Fig. 6,- to resist andV control t e u ward action of the springs, and when turned) one way or the vother the s ringswill be compressed or slackened, as t e oase may be, to supportv heavy or light riders." In Fig. 6 the thimble at the left is shown drawn up, with the flan eagainst the lower end 'of the s ring. 8 being r axed. At the right the g t 'mble is shown vdepressed by thescrew. 18, with'y its associated spring compressed or in kupward y the principa adjustment;-4 fora heavy rider. l furthermore insert short spirall bulling-springs in the branches of the fork 6 above the plungers 10, one being shown at 20 in Fig. 6. "When the plun ersare suddenl or violently thrown llsprings 8, as sometimes occurs when speeding over rough po'rtions of the road-bed or from the rider suddenly dismounting, these bufhng-springs. 20,

s t e resl ective plungers 10, conveniently tov reduce parts 22 of said plungers, and move wim thelatter. The downward movements of the plungers in extreme cases are stopped by the projecting parts of said plungers en- 'pivot-bolts 23 laonger bearings. These v are each formed with ajilange '25, against pllunger 10, t e associated" e l further providethecountering. the `ortions of the'branchesat the lower ends o .the slots.1 2.v"' This pre ntsj tering obstacles or romfother causes."

- the upper portion of the mainvfork 2*' 'om'v encountering thevtire of the wheel 3 sudden bumpings of 'the llatter when encoun` The operation, use, and advantages oflthe invention will nowbe clearly understood by;v

inspecting Fig.=-9- lIn case.- the forward;

wheel ofthe r'fehicle` strikes an obstacle ini the dicated by the dotted position, lit will correspondinglyflift theforwardverids ofthe links 4 and the branches -the spring-fork 6' to positions indicated dottedlines, and it will be noted that during these movements of the. parts the links. act with reference to the connected branches of;l the spring-forkas levers of the secondv order,`the fulcruin's being at the pivot-,bolts 23...-1Itis` further desirable in constructing these' parts tolthicken the fulcrum endsv ofthe links'or lever's 4 by forming them with conical projections or parts 24, Figs. 4 and .9, for thepurpose of giving) tlhe o ts which the coacting'branch of the main fork 2 isrigidly pressed 'by an inner screw-nut 26 and intermediate y washer 27, thebranchV of f the fork and the pivot-bolt thusactin 'as a single piece. The bolts turn'in the thic ened 'parts 24 of' the leverelinks 4, a nut 28 of suitable" kind being supplied" tothe vouter end of eachbolt.V-" 1 l It will be -noted that the'pivot-joints at 7, Figs. .1 -a'ndl 9, need not be located with referlence to the `'axle 5V exactly as shown, this be- -ing a' matter to be determined by experiment and use. lt may be Jfound4r desirable in some constructions to connect the branchesofdthe fork 6 nearer to lor'directly with the axle 5.

This is not essential tothe invention, andl do not'wish to coniinemyself to any exact man ner or place of connecting'the branches of the spring-forkr with the links. The links 4 are both alike, but right and left, they vbeing oilset in opposite directions at their thick ends, with the bodies of the links substantially in the planes of the'associated branches of the A main fork joined'to them, as clearly appears in Fig. 4. l

Whatl claim as my invention, and desire.' A

vto secure by LettersPatentViSTf- -1. A bicycle having, addition to the fork, a secondfork with hollow branches', springs in said hollow branches and means for controlling them, and links connecting the two forksipivotally with theaxle of the wheel and with each other.

2. A bicycle having, in-.addition' to 'the fork, a second fork with hollow branches,

springs in said hollow branchesand means for controlling them A and links vconnecting the two forks pivotally with the axle .of the wheeland with each other', "srnd sprang-carrying sesee fork being independent of the other fork at its upper end, and means for holding it in place on the bicycle.

3. A vehicle, as a bicycle, having a Fork and a wheel, and pivotal connectors for said fork and the axle of the wheel-, a second fork with hollow branches joined to said connectors, springs in said hollow branches, a plunger in each of the branches adapted to move longitudinally therein, and a member on the first-mentioned fork engaging the plungers to act against the springs.

4. A vehicle, as a bicycle, having a fork and a wheel, independent links connecting the branches of the fork with the wheei, a second fork with slotted tubular lnal'iclms connected with the links, springs in said hollow branches, plungers in the branches having parts projecting coaxially outward through the slots, and a member adjustable on the said lirst-nieiitioned fork joining said projecting parts of the plungers.

5. A vehicle, as a bicycle, having a fork and a wheel, independent links connecting the branches ol" the :fork with the axle of the wheel, a second l'ork ha\l ing tubular branches connected with the wlieel-axle,`springs in said branches, longitu(linally-cavitied plungers in the branches above the springs, thimbles in the phmgers to press the springs, and means in the branches tolongitudinally adjust the thimbles.

6. A vehicle, as a bicycle, having a fork and a wheel, independent links connecting the branches of the fork with the axle of the wheel, `a second fork having tubular branches open at the top connected with the wheelaxle, springs in said branches, longitudinally-l cavitied plungers 1n the branches above the springs, thimbles adapted to move longitu-l dinally in the cavities of the plungers to press the springs, adjusting-screws in said tubular branches threaded inthe thimbles and projecting out at the upper ends of the branches.

7. A bicycle having tw'o forks one forwardv of the other connected with each other and with the forward axle by independentilinks,

the branches of the forward fork being tubular and open at the top, springs in the tubular branches, plungers in said hollow branches over the springs and means to move-them toward the springs, capsy to cover the open ends of the hollow. branches, and buflingsprings in the branches between the respective caps andthe plungers.

8. A bicycle having two forks connected with each other and with the Wheel one fork having tubular branchesfsprings in said 'tubular oranches, plungers in the branches coacting with the springs and having parts prejeeting laterally out from the branches and coaxial, an axial connector for said projecting parts, and an element on the other fork j eining said projecting parts and controlling the plungers.

9. A bicycle having a fork and a wheel, and connectors for the fork and the axle 'of the wheel, ase'cond. fork with tubular slotted branches joined to said connectors, springs in the branches, plungers in said hollow branches having paris projecting laterally through the slots, a member on said iirstmentioned fork to engage said -projecting parts of the plungers, and members carried vby said plungers within the branches to cover the slots.

l0. A vehicle, as a bicycle, having 'a forward wheel and coacting fork, links connecting the branches of the fork with the axle of the wheel, a second l'ork connected with said links at its lower end and indirectly connected with the primary fork near its upper end,v

lar members connected to form a second fork with their lower ends pivotally joined to said respective-links, plungers adapted to move in said tubular members having cylindrical parts projecting laterally therefrom, a yoke on the primary fork formed with a head between said tubular members and chambered to receive said cylindrical parts, and an axial tie for the cylindrical parts.

12. A bicycle having a secondary fork connected pivotally with the forward axle, carrying-springs in the branches of the secondar'y fork, plungers in lsaid branches above the springs, and an element on the primary fork to control the lungers, there beingshort butling-springs 1n said branches above the plungers. y Y

In witness whereof I have hereunto set my hand, this 8th day of November,1906, in the presence of two subscribing witnesses.

JAMES H. SAGER. Witnesses Y E. B. WHirMoRE, A. M. WHrrMoRE.'

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